Exhibit 25.1

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY

UNDER THE TRUST INDENTURE ACT OF 1939 OF A

CORPORATION DESIGNATED TO ACT AS TRUSTEE

Check if an application to determine eligibility of A trustee

pursuant to Section 305(b)(2)  x

LASALLE BANK NATIONAL ASSOCIATION

(Exact name of trustee as specified in its charter)

36-0884183

(I.R.S. Employer

Identification No.)

135 South LaSalle Street, Chicago, Illinois 60603

(Address of principal executive offices) (Zip Code)

Willie J. Miller, Jr.

Group Senior Vice President

Chief Legal Officer and Secretary

Telephone: (312) 904-2018

135 South LaSalle Street, Suite 925

Chicago, Illinois 60603

(Name, address and telephone number of agent for service)

BLACK HILLS CORPORATION

(Exact name of obligor as specified in its charter)

South Dakota		46-0458824
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

625 Ninth Street Rapid City, South Dakota		57701
(Address of principal executive offices)		(Zip Code)

6.50% Notes due 2013

(Title of the indenture securities)

ITEM 1. GENERAL INFORMATION*

Furnish the following information as to the trustee:

(a) Name and address of each examining or supervising authority to which it is subject.

1. Comptroller of the Currency, Washington D.C.

2. Federal Deposit Insurance Corporation, Washington, D.C.

3. The Board of Governors of the Federal Reserve Systems, Washington, D.C.

(b) Whether it is authorized to exercise corporate trust powers.

Yes.

ITEM 2. AFFILIATIONS WITH THE OBLIGOR.

If the obligor is an affiliate of the trustee, describe each such affiliation.

Not Applicable

*Pursuant to General Instruction B, the trustee has responded only to items 1, 2 and 16 of this form since to the best knowledge of the trustee the obligor is not in default under any indenture under which the trustee is a trustee.

ITEM 16. LIST OF EXHIBITS.

List below all exhibits filed as part of this statement of eligibility and qualification.

1. A copy of the Articles of Association of LaSalle Bank National Association now in effect (incorporated herein by reference to Exhibit 1 filed with Form T-1 in File No. 333-101155).

2. A copy of the certificate of authority to commence business (incorporated herein by reference to Exhibit 2 filed with Form T-1 filed with the Current Report on Form 8-K, dated June 29, 2000, in File No. 333-61691).

3. A copy of the authorization to exercise corporate trust powers (incorporated herein by reference to Exhibit 3 filed with Form T-1 filed with the Current Report on Form 8-K, dated June 29, 2000, in File No. 333-61691).

4. A copy of the existing By-Laws of LaSalle Bank National Association (incorporated herein by reference to Exhibit 4 filed with Form T-1 in File No. 333-101155).

5. Not applicable.

6. The consent of the trustee required by Section 321(b) of the Trust Indenture Act of 1939 (incorporated herein by reference to Exhibit 6 filed with Form T-1 filed with the Current Report on Form 8-K, dated June 29, 2000, in File No. 333-61691).

7. A copy of the latest report of condition of the trustee published pursuant to law or the requirements of its supervising or examining authority.

8. Not applicable.

9. Not applicable.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, the trustee, LaSalle Bank National Association, a corporation organized and existing under the laws of the United States of America, has duly caused this statement of eligibility to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Chicago, State of Illinois, on the 19th day of May, 2003.

LASALLE BANK NATIONAL ASSOCIATION
By:		/s/    JOHN PORTER
		John Porter Vice President

EXHIBIT 7

COPY OF THE LATEST REPORT OF CONDITION OF THE TRUSTEE

Exhibit 7

LaSalle Bank N.A.		Call Date: 3/31/2003		ST-BK: 17-1520		FFIEC		031
135 South LaSalle Street						Page		RC- 1
Chicago, IL 60603		Vendor ID: D		CERT: 15407		11

Transit Number: 71000505

Consolidated Report of Condition for Insured Commercial and

State-Chartered Savings Banks for March 31, 2003

All schedules are to be reported in thousands of dollars. Unless otherwise indicated, report the amount outstanding as of the last business day of the quarter.

Schedule RC—Balance Sheet

								Dollar Amounts in Thousands
ASSETS
1.		Cash and balances due from depository institutions (from Schedule RC-A):						RCFD
		a.  Noninterest-bearing balances and currency and coin (1)						0081		2,005,672		1.a
		b.  Interest-bearing balances (2)						0071		100,487		1.b
2.		Securities:
		a.  Held-to-maturity securities (from Schedule RC-B, column A)						1754		223,822		2.a
		b.  Available-for-sale securities (from Schedule RC-B, column D)						1773		21,996,958		2.b
3.		Federal funds sold and securities purchased under agreements to resell
		a.  Federal funds sold in domestic offices						B987		162,060		3.a
		b.  Securitites purchased under agreements to resell (3)						B989		67,111		3.b
4.		Loans and lease financing receivables (from schedule RC-C)
		a.  Loans and leases held for sale						5369		329,594		4.a
		b.  Loans and leases, net of unearned income		B528		33,030,703
		c.  LESS: Allowance for loan and lease losses		3123		544,116						4.c
		d.  Loans and leases, net of unearned income,      allowance, and reserve (item 4.a minus 4.b and 4.c)						B529		32,486,587		4.d
5.		Trading assets (from Schedule RC-D)						3545		550,987		5.
6.		Premises and fixed assets (including capitalized leases)						2145		262,094		6.
7.		Other real estate owned (from Schedule RC-M)						2150		21,896		7.
8.		Investments in unconsolidated subsidiaries and associated companies (from
		Schedule RC-M)						2130		0		8.
9.		Customers’ liability to this bank on acceptances outstanding						2155		12,948		9.
10.		Intangible assets (from Schedule RC-M)
		a.  Goodwill						3163		181,613		10.a
		b.  Other Intangible assets						0426		10,245		10.b
11.		Other assets (from Schedule RC-F)						2160		2,085,172		11.
12.		Total assets (sum of items 1 through 11)						2170		60,497,246		12.

(1) Includes cash items in process of collection and unposted debits.

(2) Includes time certificates of deposit not held for trading.

(3) Includes all securites resale agreements in domestic and foreign offies, regardless of maturity.

Exhibit 7

LaSalle Bank N.A.		Call Date: 3/31/2003		ST-BK: 17-1520		FFIEC		031
135 South LaSalle Street						Page		RC- 2
Chicago, IL 60603		Vendor ID: D		CERT: 15407		12

Transit Number: 71000505

Schedule RC-Continued

								Dollar Amounts in Thousands
LIABILITIES
13.		Deposits:
		a. In domestic offices (sum of totals of						RCON
		columns A and C from Schedule RC-E, part I)						2200		25,935,670		13.	a
				RCON
		(1) Noninterest-bearing (1)		6631		5,511,356						13.	a.1
		(2) Interest-bearing		6636		20,424,314						13.	a.2
								RCFN
		b. In foreign offices, Edge and Agreement subsidiaries, and IBFs (from Schedule RC-E, part II)						2200		5,907,797		13.	b
				RCFN
		(1) Noninterest-bearing		6631		0						13.	b.1
		(2) Interest-bearing		6636		5,907,797						13.	b.2
								RCON
14.		Federal funds purchased and securities sold under agreements to repurchase:
		a. Federal funds purchased in domestic offices (2)						B993		3,688,632		14.	a
								RCFD
		b. Securities sold under agreements to repurchase (3)						B995		2,929,686		14.	b
15.		Trading liabilities (from Schedule RC-D)						3548		207,652		15
16.		Other borrowed money (includes mortgage indebtedness and obligations under capitalized leases): From schedule RC-M						3190		10,174,217		16
17.		Not applicable.
18.		Bank’s liability on acceptances executed and outstanding						2920		12,948		18.
19.		Subordinated notes and debentures (4)						3200		610,000		19.
20.		Other liabilities (from Schedule RC-G)						2930		6,447,618		20.
21.		Total liabilities (sum of items 13 through 20)						2948		55,914,220		21.
22.		Minority Interest in consolidated subsidiaries						3000		28,942		22.
EQUITY CAPITAL
								RCFD
23.		Perpetual preferred stock and related surplus						3838		635,410		23.
24.		Common stock						3230		41,234		24.
25.		Surplus (exclude all surplus related to preferred stock)						3839		1,917,163		25.
26.		a.Retained Earnings						3632		1,852,938		26.	a
		b. Accumulated Other Comprehensive income.(5)						B530		107,339		26.	b
27.		Other Equity capital components (6)						3284		0		27.
28.		Total equity capital (sum of items 23 through 27)						3210		4,554,084		28.
29.		Total liabilities, minority interest, and equity capital (sum of items 21, 22, and 28)						3300		60,497,246		29.
Memorandum
To be reported only with the March Report of Condition.
1. Indicate in the box at the right the number of the statement below that best  describes the most comprehensive level of auditing work performed for  the bank by independent external auditors as of any date during 2001								RCFD 6724		Number 2		M.I

1 =		Independent audit of the bank conducted in accordance with generally accepted auditing standards by a certified public accounting firm which submits a report on the bank		4 =		Directors’ examination of the bank conducted in accordance with generally accepted auditing standards by a certified accounting firm (may be required by state chartering authority)
2 =		Independent audit of the bank’s parent holding company conducted in accordance with generally accepted auditing standards by a certified public accounting firm which submits a report on the consolidated holding company (but not on the bank separately)		5 = 6 =		Directors’ examination of the bank performed by other external auditors (may be required by state chartering authority) Review of the bank’s financial statements by external auditors
3 =		Attestation on bank managements assertion on the effectiveness of the bank’s internal control over financial reporting by a certified public accounting firm.		7 =		Compilation of the bank’s financial statements by external auditors
				8 =		Other audit procedures (excluding tax preparation work)
				9 =		No external audit work

(1) Includes total demand deposits and noninterest-bearing time and savings deposits.

(2) Report overnight Federal Home Loan Bank advances in Schedule RC, item 16 "other borrowed money."

(3) Includes all securities repurchased agreements in domestic and foreign offices, regardless of maturity.

(4) Includes limited-life preferred stock and related surplus.

(5) Includes net unrealized holding gains(losses) on available for sale securities, accumulated net gains (losses) on cash flow hedges, cumulative foreign currency translation adjustments, and minimum pension liability adjustments.

(6) Includes treasury stock and unearned Employee Stock Ownership plan shares.