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Investments (Tables)

6 Months Ended

Jun. 30, 2014

Investments [Abstract]

Other Investments and ALLETE Properties [Table Text Block]



Other Investments	June 30, 2014				December 31, 2013
Millions
ALLETE Properties		$90.0				$89.9
Available-for-sale Securities (a)	18.9				17.7
Cash Equivalents (b)	3.4				34.2
Other	4.4				4.5
Total Other Investments		$116.7				$146.3


(a)	As of June 30, 2014, the aggregate amount of available-for-sale corporate debt securities maturing in one year or less was $0.2 million, in one year to less than three years was $2.3 million, in three years to less than five years was $1.8 million, and in five or more years was $6.2 million.


(b)	During the first three months of 2014, cash included in Other Investments was transferred to Cash and Cash Equivalents.



ALLETE Properties	June 30, 2014				December 31, 2013
Millions
Land Inventory Beginning Balance		$85.4				$86.5
Cost of Sales	(0.2		)		(1.5		)
Other	0.3				0.4
Land Inventory Ending Balance	85.5				85.4
Long-Term Finance Receivables (net of allowances of $0.6 and $0.6)	1.4				1.4
Other	3.1				3.1
Total Real Estate Assets		$90.0				$89.9

Available-for-sale Securities [Table Text Block]



		Gross Unrealized
Available-For-Sale Securities	Cost	Gain	Loss	Fair Value
Millions
June 30, 2014	$18.9	$0.4	$0.4	$18.9
December 31, 2013	$18.3	—	$0.6	$17.7

Available-for-sale Securities [Table Text Block]



	Net	Gross Realized
Available-For-Sale Securities (Continued)	Proceeds	Gain	Loss
Millions
Quarter Ended June 30,
2014	$2.1	$0.2	—
2013	$0.2	—	—
Six Months Ended June 30,
2014	$2.7	$0.2	—
2013	$8.1	$0.8	—