Iron Mountain is located east of Sweet Home, Oregon and is a very popular hike so expect a number of other hikers, especially on a weekend. TH parking may be challenging when it's busy.
There is a new, large observation platform built where the old firetowers used to be. This summit is quite exposed if the wind is blowing. The vistas are superb with precipitous dropoffs to the south and east. The trail is 2.4 miles RT and 700 feet gain.
Getting There
From Sweet Home travel approximately 32 miles east on Highway 20. Then turn left on Road #035 and travel 2.6 miles to the trailhead. This is the shortest route to the top. The road is quite passable for a 2wd vehicle, probably accounting for the popularity. A restroom is located at this upper trailhead. Or see the Willamette National Forest website for Iron Mountain for a longer hike from the highway: https://www.fs.usda.gov/recarea/willamette/recarea/?recid=4345.
Red Tape
NW Forest Pass required.
When To Climb
The road is usually snow free between June and September. The access road is not plowed in the winter but the road is a popular cross-country trail and often used by snowmobiles. The trail to the top is quite exposed so I would recommend NOT trying it in the winter/snow times.
Mountain Conditions
Great vistas especially of the Cascades. The summit is exposed so the wind can be rough. There are few locations where you and your antenna could be located without being a problem if the summit is crowded on a weekend.
External Pictures
http://www.flickr.com/photos/62451753@N06/sets/72157634127090052/